Comparison

Snap Offline Interviewer vs CentraOS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Snap Offline Interviewer

About

Snap Offline Interviewer

Features

Read full description

A mobile interviewing App enabling research surveys to be completed on the iPad, iPhone or iPod Touch. Automatic connections to Snap’s central server to upload completed questionnaires and download the latest surveys. Extensive facilities to help interviewers move seamlessly through a questionnaire, with sliders, routing, text substitution and masking. Surveys can include images and videos as well as text-based questions.

About

CentraOS

Features

Read full description

CentraOS is a secure push-to-talk and incident management platform for enterprise teams. Instant voice communication with push-to-talk (PTT) Real-time group collaboration and incident tracking Location sharing (optional) for rapid response

Screenshots

Snap Offline Interviewer3 screens

CentraOS3 screens

Verdict

The call

The clearest difference is update cadence: CentraOS at every 2 weeks against Snap Offline Interviewer's every 3 months. Snap Offline Interviewer's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Snap Offline Interviewer ships an update every 3 months, CentraOS every 2 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 4 level

Snap Offline Interviewer versus CentraOS: the parameters behind the verdict, then further details
Parameter	Snap Offline Interviewer	CentraOS
Price	Free	Free
Update frequency	Every 3 months	Every 2 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone
Requires iOS	15.0 — better	16.0
Further details — not scored
Size	80 MB	118 MB
Age rating	4+	4+
Developer	Snap Surveys Limited	Elbit Systems

In-app purchases

None

Snap Offline Interviewer

No in-app purchases

None

CentraOS

No in-app purchases

Questions

Is Snap Offline Interviewer free?

Snap Offline Interviewer is free to download, with no in-app purchases.

Is CentraOS free?

CentraOS is free to download, with no in-app purchases.

Do Snap Offline Interviewer or CentraOS have ads?

Neither Snap Offline Interviewer nor CentraOS shows ads.

Which is updated more often, Snap Offline Interviewer or CentraOS?

Snap Offline Interviewer ships an update every 3 months, and CentraOS every 2 weeks. Most recently, Snap Offline Interviewer was updated on November 2, 2026 and CentraOS on October 30, 2026.